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<p>Contaminants of emerging concern (CECs) include a vast range of largely unregulated, recently detected, and potentially harmful substances that vary substantially in terms of their physicochemical properties. Despite more than two decades of research, much uncertainty remains regarding their detection, behaviour, impacts, and treatment. This systematic meta-review draws from dozens of published review articles and collates their reported findings to establish current scientific consensus&#xa0;on the subject. It begins by providing an overview of the classes and characteristics of known CECs. It then discusses their typical sources, occurrence, and fate in various aquatic environments. Further treatment is given to (i) the potential impacts of CECs on both humans and natural ecosystems; (ii) the need for extensive monitoring and surveillance programmes; (iii) the importance (and current lack) of effective regulation, management, and mitigation strategies; and (iv) current and emerging treatment technologies. Finally, critical knowledge gaps and future research directions are identified and discussed.</p>

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Contaminants of Emerging Concern in Water Resources: An Introductory Meta-Review of their Occurrence, Impacts, Management and Treatment

  • 期刊论文

  • 发表日期：

    2025年12月26日

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  • Kent Anson Locke,
  • Kevin Winter

摘要

Contaminants of emerging concern (CECs) include a vast range of largely unregulated, recently detected, and potentially harmful substances that vary substantially in terms of their physicochemical properties. Despite more than two decades of research, much uncertainty remains regarding their detection, behaviour, impacts, and treatment. This systematic meta-review draws from dozens of published review articles and collates their reported findings to establish current scientific consensus on the subject. It begins by providing an overview of the classes and characteristics of known CECs. It then discusses their typical sources, occurrence, and fate in various aquatic environments. Further treatment is given to (i) the potential impacts of CECs on both humans and natural ecosystems; (ii) the need for extensive monitoring and surveillance programmes; (iii) the importance (and current lack) of effective regulation, management, and mitigation strategies; and (iv) current and emerging treatment technologies. Finally, critical knowledge gaps and future research directions are identified and discussed.